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公开(公告)号：US09544545B2
公开(公告)日：2017-01-10
申请号：US14464534
申请日：2014-08-20
Applicant: Hunter Engineering Company
Inventor： Michael T. Stieff , Daniel R. Dorrance , Thomas J. Golab , Mark S. Shylanski
IPC: G01B11/275 , H04N7/18 , B60R11/04
CPC classification number: H04N7/18 , B60R11/04 , G01B11/275 , G01B11/2755 , G01B2210/12 , G01B2210/14 , G01B2210/30
Abstract: A machine vision vehicle wheel alignment system for acquiring measurements associated with a vehicle. The system includes at least one imaging sensor having a field of view and at least one optical target secured to a wheel assembly on a vehicle within the field of view of the imaging sensor. The optical target includes a plurality of visible target elements disposed on at least two surfaces in a determinable geometric and spatial configuration which are calibrated prior to use. A processing unit in the system is configured to receive at least two sets of image data from the imaging sensor, with each set of image data acquired at a different rotational position of the wheel assembly around an axis of rotation and representative of at least one visible target element on each of the two surfaces, from which the processing unit is configured to identify said axis of rotation of the wheel assembly.
Abstract translation: 一种用于获取与车辆相关联的测量的机器视觉车轮对准系统。 该系统包括具有视场的至少一个成像传感器和在成像传感器的视野内的车辆上固定到车轮组件上的至少一个光学目标。 光学目标包括以可确定的几何和空间配置布置在至少两个表面上的多个可见目标元件，其在使用之前被校准。 系统中的处理单元被配置为从成像传感器接收至少两组图像数据，其中每组图像数据在轮组件的不同旋转位置处围绕旋转轴线获取，并且代表至少一个可见光 目标元件在两个表面中的每一个上，处理单元从该目标元件构造成识别车轮组件的所述旋转轴线。
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2.发明申请Method For Evaluating Component Calibration In Machine Vision Vehicle Wheel Alignment System 有权在机器视觉车轮对准系统中评估组件校准的方法公开(公告)号：US20140111645A1
公开(公告)日：2014-04-24
申请号：US13830867
申请日：2013-03-14
Applicant: HUNTER ENGINEERING COMPANY
Inventor： Mark S. Shylanski , Daniel R. Dorrance , Bruce E. Bernard , Thomas J. Golab
IPC: G01B11/27
CPC classification number: G01B11/27 , G01B11/275 , G01B11/2755 , G01B2210/12 , G01B2210/143 , G01B2210/303 , G06T7/0004 , G06T7/0006 , G06T7/30 , G06T7/32 , G06T7/33 , G06T7/73 , G06T7/85 , G06T7/97 , G06T2207/10012 , G06T2207/30164
Abstract: A process for calibrating and evaluating a machine-vision vehicle wheel alignment system having front and rear imaging components associated with each of the left and right sides of a vehicle support structure. Each pair of imaging components defines a front and rear field of view, with a common overlapping region associated with each respective side of the vehicle support structure. Optical targets disposed within each of the overlapping field of view regions are observed by the imaging components to establish performance ratings for the system as a whole, for groups of components within the system, and for individual components within the system.
Abstract translation: 一种用于校准和评估机器视觉车轮对准系统的方法，该系统具有与车辆支撑结构的左侧和右侧中的每一个相关联的前后成像部件。 每对成像组件限定了前视场和后视野，其中共同重叠区域与车辆支撑结构的每个相应侧相关联。 通过成像部件来观察设置在每个重叠视野区域内的光学目标，以建立系统整体的性能等级，对于系统内的组件组以及系统内的各个部件。
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公开(公告)号：US08561307B2
公开(公告)日：2013-10-22
申请号：US13693750
申请日：2012-12-04
Applicant: Hunter Engineering Company
Inventor： Michael T. Stieff , Dennis M. Linson , Daniel R. Dorrance , Thomas J. Golab , Mark S. Shylanski
IPC: G01B11/275 , G01B5/255
CPC classification number: G01B11/275 , G01B11/2755 , G01B2210/14 , G01B2210/30
Abstract: A method and apparatus for determining the alignment of a vehicle wheel using an optical target assembly secured to the vehicle wheel in a non-determined position, the optical target assembly having a dimensionally stable shape and a plurality of optical target elements disposed on a plurality of target surfaces. Images of the optical target elements are acquired by an imaging system, together with target identifying indicia, and utilized together with previously stored target characterization data to determine a spatial orientation of the optical target assembly and an alignment of the vehicle wheel onto which it is secured.
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公开(公告)号：US11112239B1
公开(公告)日：2021-09-07
申请号：US16183523
申请日：2018-11-07
Applicant: Hunter Engineering Company
Inventor： Mark S. Shylanski
IPC: G01B21/18
Abstract: A method for evaluating a plurality of tread depth measurements within a shoulder surface region of a tire to detect or identify the presence of excessive or non-uniform wear on the tire shoulder.
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公开(公告)号：US10475201B1
公开(公告)日：2019-11-12
申请号：US15423265
申请日：2017-02-02
Applicant: Hunter Engineering Company
Inventor： Aaron C. Hall , Mark S. Shylanski , Timothy A. Strege
Abstract: A vehicle inspection or measurement method and system configured to utilize non-contact optical sensors to acquire images and measurement data associated with at least one vehicle wheel assembly as a vehicle moves through a field of view, and to evaluate the acquired image and/or measurement data to determine at least one dimension associated with an observed feature of the vehicle wheel assembly.
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Patent Agency Ranking
6.发明授权公开(公告)号：US09644952B2
公开(公告)日：2017-05-09
申请号：US13830867
申请日：2013-03-14
Applicant: Hunter Engineering Company
Inventor： Mark S. Shylanski , Daniel R. Dorrance , Bruce E. Bernard , Thomas J. Golab , Michael T. Stieff , James W. McClenahan , J. Kaleb Silver , Timothy A. Strege , Nicholas J. Colarelli, III
IPC: G01B11/27 , G06T7/00 , G01B11/275
CPC classification number: G01B11/27 , G01B11/275 , G01B11/2755 , G01B2210/12 , G01B2210/143 , G01B2210/303 , G06T7/0004 , G06T7/0006 , G06T7/30 , G06T7/32 , G06T7/33 , G06T7/73 , G06T7/85 , G06T7/97 , G06T2207/10012 , G06T2207/30164
Abstract: A process for calibrating and evaluating a machine-vision vehicle wheel alignment system having front and rear imaging components associated with each of the left and right sides of a vehicle support structure. Each pair of imaging components defines a front and rear field of view, with a common overlapping region associated with each respective side of the vehicle support structure. Optical targets disposed within each of the overlapping field of view regions are observed by the imaging components to establish performance ratings for the system as a whole, for groups of components within the system, and for individual components within the system.
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公开(公告)号：US09986232B1
公开(公告)日：2018-05-29
申请号：US14695819
申请日：2015-04-24
Applicant: Hunter Engineering Company
Inventor： Mark S. Shylanski
CPC classification number: H04N17/002 , G01B11/14 , G01B11/27 , G06K9/00624 , H04N7/18 , H04N7/183
Abstract: A method for distance calibration of machine vision optical targets and associated observing imaging sensors using separation distances between discrete surface measurement points. First, a spatial position for each surface point is established from a series of observations by the associated observing imaging sensor of the optical targets mounted to a calibration fixture. Second, measures of a linear separation distance between particular pairs of surface points are identified independently from the machine vision observations. All resulting spatial positions and measurements are conveyed to a processing system configured with a set of software instructions for carrying out distance calibration calculations to establish a set of refined distance calibration parameters associated with each combination of optical target and observing imaging sensor. During subsequent use of the machine vision vehicle service system, the parameters are retrieved and utilized to improve vehicle measurement precision.
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公开(公告)号：US09665793B2
公开(公告)日：2017-05-30
申请号：US14209552
申请日：2014-03-13
Applicant: Hunter Engineering Company
Inventor： Daniel R. Dorrance , Mark S. Shylanski
IPC: G06T7/00 , G06T7/20 , G06K9/60 , G01B11/275 , G06T7/73
CPC classification number: G06K9/60 , G01B11/2755 , G01B2210/20 , G01B2210/286 , G06T7/73 , G06T2200/04 , G06T2207/10016 , G06T2207/10028 , G06T2207/20221
Abstract: A method for contactless measurements of a vehicle wheel assembly by acquiring a sequence of images as the vehicle wheel assembly moves within a projected pattern of light. Images of the vehicle wheel assembly are acquired and processed to identify the portions of the images corresponding to the wheel assembly, such as by recognition of the wheel rim edge. The identified portion of each image is cropped and a resulting point cloud of data rotational aligned by an optimization procedure to remove the effect of wheel translation and rotation between each image, as well as to identify a center of rotation and amount of rotation for each image which yields a best-fit result. Superimposing the resulting point clouds produces a generated image with a high density of data points on the optimally fit surfaces of the wheel assembly, which can be used to further refine the axis of rotation determination.
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公开(公告)号：US20130176428A1
公开(公告)日：2013-07-11
申请号：US13781977
申请日：2013-03-01
Applicant: Hunter Engineering Company
Inventor： Michael T. Stieff , Daniel R. Dorrance , Thomas J. Golab , Mark S. Shylanski
IPC: G01B11/275
CPC classification number: H04N7/18 , B60R11/04 , G01B11/275 , G01B11/2755 , G01B2210/12 , G01B2210/14 , G01B2210/30
Abstract: A machine vision vehicle wheel alignment system for acquiring measurements associated with a vehicle. The system includes at least one imaging sensor having a field of view and at least one optical target secured to a wheel assembly on a vehicle within the field of view of the imaging sensor. The optical target includes a plurality of visible target elements disposed on at least two surfaces in a determinable geometric and spatial configuration which are calibrated prior to use. A processing unit in the system is configured to receive at least two sets of image data from the imaging sensor, with each set of image data acquired at a different rotational position of the wheel assembly around an axis of rotation and representative of at least one visible target element on each of the two surfaces, from which the processing unit is configured to identify said axis of rotation of the wheel assembly.
Abstract translation: 一种用于获取与车辆相关联的测量的机器视觉车轮对准系统。 该系统包括至少一个具有视野的成像传感器和在成像传感器的视场内固定到车辆上的车轮组件的至少一个光学目标。 光学目标包括以可确定的几何和空间配置布置在至少两个表面上的多个可见目标元件，其在使用之前被校准。 系统中的处理单元被配置为从成像传感器接收至少两组图像数据，其中每组图像数据在轮组件的不同旋转位置周围围绕旋转轴线获取，并且代表至少一个可见光 目标元件在两个表面中的每一个上，处理单元从该目标元件构造成识别车轮组件的所述旋转轴线。
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公开(公告)号：US20140354818A1
公开(公告)日：2014-12-04
申请号：US14464534
申请日：2014-08-20
Applicant: Hunter Engineering Company
Inventor： Michael T. Stieff , Daniel R. Dorrance , Thomas J. Golab , Mark S. Shylanski
IPC: H04N7/18 , B60R11/04 , G01B11/275
CPC classification number: H04N7/18 , B60R11/04 , G01B11/275 , G01B11/2755 , G01B2210/12 , G01B2210/14 , G01B2210/30
Abstract: A machine vision vehicle wheel alignment system for acquiring measurements associated with a vehicle. The system includes at least one imaging sensor having a field of view and at least one optical target secured to a wheel assembly on a vehicle within the field of view of the imaging sensor. The optical target includes a plurality of visible target elements disposed on at least two surfaces in a determinable geometric and spatial configuration which are calibrated prior to use. A processing unit in the system is configured to receive at least two sets of image data from the imaging sensor, with each set of image data acquired at a different rotational position of the wheel assembly around an axis of rotation and representative of at least one visible target element on each of the two surfaces, from which the processing unit is configured to identify said axis of rotation of the wheel assembly.
Abstract translation: 一种用于获取与车辆相关联的测量的机器视觉车轮对准系统。 该系统包括至少一个具有视野的成像传感器和在成像传感器的视场内固定到车辆上的车轮组件的至少一个光学目标。 光学目标包括以可确定的几何和空间配置布置在至少两个表面上的多个可见目标元件，其在使用之前被校准。 系统中的处理单元被配置为从成像传感器接收至少两组图像数据，其中每组图像数据在轮组件的不同旋转位置周围围绕旋转轴线获取，并且代表至少一个可见光 目标元件在两个表面中的每一个上，处理单元从该目标元件构造成识别车轮组件的所述旋转轴线。
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